svnadmin recovery takes "forever" tip

I've had a database wedge on svn 0.37.0, with the BDB backend.

When I did the "svnadmin recovery" it seemed to take forever... atleast,
it didn't finish in 7 hours wall-clock (having eaten roughly 270
cpu-minutes).

At that point I was desperate to get the server up and running again.
All the backups from within the last month couldn't svnadmin dump,
because of "reference to missing revision", so obviously "something" had
been wrong for a long time!

Then, I stumbled upon a mail about BDB recoveries, stating that BDB
recovery time is (at least) linear in the size of "*log*" files. So, I
did (yet another :) copy of the wedged repo to a temp-area, removed
log.* and __log* and ran svnadmin recover.

Less than 10 seconds later, I had an unwedged repo!

Now, the svnadmin dump has finished dumping the whole repo, so
everything seems fine now. If I had only known.... which explains this
mail to the list :)

-- 
Helge
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